From d56b4d1db34bd6928f599e7e9a7321c2a81cb995 Mon Sep 17 00:00:00 2001
From: Adam Powell <adamp@google.com>
Date: Sun, 30 Sep 2012 18:27:31 -0700
Subject: [PATCH] Construct a task stack for picking a wifi network from
 notification

Bug 7001327

Change-Id: I5a79e6933cd33386cd0aa4df626f15902deedd67
---
 core/java/android/app/PendingIntent.java      | 25 +++++++++++++++++++
 core/java/android/app/TaskStackBuilder.java   | 14 +++++++++++
 .../java/com/android/server/WifiService.java  |  8 +++---
 3 files changed, 44 insertions(+), 3 deletions(-)

diff --git a/core/java/android/app/PendingIntent.java b/core/java/android/app/PendingIntent.java
index 9d5746734b855..d36d99deeb444 100644
--- a/core/java/android/app/PendingIntent.java
+++ b/core/java/android/app/PendingIntent.java
@@ -394,6 +394,31 @@ public final class PendingIntent implements Parcelable {
         return null;
     }
 
+    /**
+     * @hide
+     * Note that UserHandle.CURRENT will be interpreted at the time the
+     * activity is started, not when the pending intent is created.
+     */
+    public static PendingIntent getActivitiesAsUser(Context context, int requestCode,
+            Intent[] intents, int flags, Bundle options, UserHandle user) {
+        String packageName = context.getPackageName();
+        String[] resolvedTypes = new String[intents.length];
+        for (int i=0; i<intents.length; i++) {
+            intents[i].setAllowFds(false);
+            resolvedTypes[i] = intents[i].resolveTypeIfNeeded(context.getContentResolver());
+        }
+        try {
+            IIntentSender target =
+                ActivityManagerNative.getDefault().getIntentSender(
+                    ActivityManager.INTENT_SENDER_ACTIVITY, packageName,
+                    null, null, requestCode, intents, resolvedTypes,
+                    flags, options, user.getIdentifier());
+            return target != null ? new PendingIntent(target) : null;
+        } catch (RemoteException e) {
+        }
+        return null;
+    }
+
     /**
      * Retrieve a PendingIntent that will perform a broadcast, like calling
      * {@link Context#sendBroadcast(Intent) Context.sendBroadcast()}.
diff --git a/core/java/android/app/TaskStackBuilder.java b/core/java/android/app/TaskStackBuilder.java
index 9d5bcc6b7ac7d..3e0ac7ec47673 100644
--- a/core/java/android/app/TaskStackBuilder.java
+++ b/core/java/android/app/TaskStackBuilder.java
@@ -273,6 +273,20 @@ public class TaskStackBuilder {
                 flags, options);
     }
 
+    /**
+     * @hide
+     */
+    public PendingIntent getPendingIntent(int requestCode, int flags, Bundle options,
+            UserHandle user) {
+        if (mIntents.isEmpty()) {
+            throw new IllegalStateException(
+                    "No intents added to TaskStackBuilder; cannot getPendingIntent");
+        }
+
+        return PendingIntent.getActivitiesAsUser(mSourceContext, requestCode, getIntents(), flags,
+                options, user);
+    }
+
     /**
      * Return an array containing the intents added to this builder. The intent at the
      * root of the task stack will appear as the first item in the array and the
diff --git a/services/java/com/android/server/WifiService.java b/services/java/com/android/server/WifiService.java
index adb63f9b8dcf1..98794c923f7cc 100644
--- a/services/java/com/android/server/WifiService.java
+++ b/services/java/com/android/server/WifiService.java
@@ -21,6 +21,7 @@ import android.app.AlarmManager;
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
+import android.app.TaskStackBuilder;
 import android.bluetooth.BluetoothAdapter;
 import android.content.BroadcastReceiver;
 import android.content.ContentResolver;
@@ -1766,9 +1767,10 @@ public class WifiService extends IWifiManager.Stub {
                 mNotification.when = 0;
                 mNotification.icon = ICON_NETWORKS_AVAILABLE;
                 mNotification.flags = Notification.FLAG_AUTO_CANCEL;
-                mNotification.contentIntent = PendingIntent.getActivityAsUser(mContext, 0,
-                        new Intent(WifiManager.ACTION_PICK_WIFI_NETWORK), 0,
-                        null, UserHandle.CURRENT);
+                mNotification.contentIntent = TaskStackBuilder.create(mContext)
+                        .addNextIntentWithParentStack(
+                                new Intent(WifiManager.ACTION_PICK_WIFI_NETWORK))
+                        .getPendingIntent(0, 0, null, UserHandle.CURRENT);
             }
 
             CharSequence title = mContext.getResources().getQuantityText(